Ōiwi Performance Apparel is constructed only from premium fabric that is rated UPF 50+ by the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA).
UPF 50+ is the highest sun protection rating for clothing. It blocks 97.5% of the sun's UV rays.
Ōiwi performance apparel is soft, lightweight, breathable, & quick-drying. Athletic fit for functionality in and out of the water. 4-way stretch & flat seams eliminate chaffing and allows maximum performance, flexibility, and comfort for any activity.
UPF refers to the amount of UV rays blocked by apparel and fabrics. UPF is a transmission test: Our fabric is exposed to a UV source that simulates the sun's rays at noon. The amount of UV rays blocked by the fabric is measured by a device called a spectrophotometer. The UPF rating refers to how much UVR is blocked. Read more about UPF factor testing